elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Probabilistic high-density Particle-Tracking-Velocimetry of turbulent flow structures in a cubic Rayleigh-Bénard convection cell.

Barta, Robin and Schiepel, Daniel and Herzog, Sebastian and Wagner, Claus (2022) Probabilistic high-density Particle-Tracking-Velocimetry of turbulent flow structures in a cubic Rayleigh-Bénard convection cell. In: 20th International Symposium on Application of Laser and Imaging Techniques to Fluid Mechanics 2022. 20th International Symposium on Application of Laser and Imaging Techniques to Fluid Mechanics 2022, 2022-07-11 - 2022-07-14, Lissabon, Portugal.

This is the latest version of this item.

[img] PDF - Only accessible within DLR
3MB
[img] PDF - Only accessible within DLR
6MB

Official URL: http://www.lisbon-lasersymposium.org/LXLASER2022

Abstract

We apply a new probabilistic python-based high-density Particle-Tracking-Velocimetry (pyHDPTV) method and the commercial Shake-The-Box (STB) algorithm from LaVision (DaVis v10.2.0) to measured data of a turbulent RayleighBénard (RB) convection in a cubic cell. The measurement was performed in water (Prandtl number Pr = 7) with a seeding particle densities of 0,04 ppp at the hard turbulence regime with Rayleigh number Ra = 1 · 1E10. The comparison of the two PTV approaches reveals that the probabilistic pyHDPTV method leads to similar qualitative flow structures as with the state-of-the-art STB method. However, the pyHDPTV framework leads to better quantitative results such as longer track lengths, more active tracks and a higher track density over the whole measurement volume.

Item URL in elib:https://elib.dlr.de/186714/
Document Type:Conference or Workshop Item (Speech)
Title:Probabilistic high-density Particle-Tracking-Velocimetry of turbulent flow structures in a cubic Rayleigh-Bénard convection cell.
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Barta, RobinUNSPECIFIEDhttps://orcid.org/0000-0001-8882-5864UNSPECIFIED
Schiepel, DanielUNSPECIFIEDhttps://orcid.org/0000-0002-3703-3514UNSPECIFIED
Herzog, SebastianUNSPECIFIEDhttps://orcid.org/0000-0001-7167-3489UNSPECIFIED
Wagner, ClausUNSPECIFIEDhttps://orcid.org/0000-0003-2273-0568UNSPECIFIED
Date:July 2022
Journal or Publication Title:20th International Symposium on Application of Laser and Imaging Techniques to Fluid Mechanics 2022
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:PTV processing, Rayleigh Bénard convection, Turbulence.
Event Title:20th International Symposium on Application of Laser and Imaging Techniques to Fluid Mechanics 2022
Event Location:Lissabon, Portugal
Event Type:international Conference
Event Start Date:11 July 2022
Event End Date:14 July 2022
Organizer:ADAI - Association for the Development of Industrial Aerodynamics Center for Innovation, Technology and Policy Research IN+
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Rail Transport
DLR - Research area:Transport
DLR - Program:V SC Schienenverkehr
DLR - Research theme (Project):V - NGT BIT (old)
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Ground Vehicles
Deposited By: Barta, Robin
Deposited On:29 Jul 2022 16:20
Last Modified:24 Apr 2024 20:48

Available Versions of this Item

  • Probabilistic high-density Particle-Tracking-Velocimetry of turbulent flow structures in a cubic Rayleigh-Bénard convection cell. (deposited 29 Jul 2022 16:20) [Currently Displayed]

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Website and database design: Copyright © German Aerospace Center (DLR). All rights reserved.